public function loadPage() {
        $this->buildComponents();
        add_action('wcexaap_checkout_review_template', [$this, 'containerTemplate']);
        add_action('wp_enqueue_scripts', [$this, 'enqueueAssets']);

        usces_get_entries();
        usces_get_carts();
        usces_get_members();

        $this->beforeTemplateInclude();

        $parent_path = get_template_directory() . '/wc_templates';
        $child_path = get_stylesheet_directory() . '/wc_templates';
        $plugins_url_path = WP_PLUGIN_DIR . '/wcex-amazonpay/templates';
        $theme_template = wp_get_theme()->template;
        // TCD Welcartの場合、プラグイン内のファイルを取り込む
        if (file_exists($child_path . '/cart/wc_amazon_quickpay_page.php')) {
            include($child_path . '/cart/wc_amazon_quickpay_page.php');
        } elseif (file_exists($parent_path . '/cart/wc_amazon_quickpay_page.php') && !defined('USCES_PARENT_LOAD')) {
            include($parent_path . '/cart/wc_amazon_quickpay_page.php');
        } elseif ($theme_template === 'glamour_tcd073') {
            include($plugins_url_path . '/glamour_tcd073/cart/wc_amazon_quickpay_page.php');
        } elseif ($theme_template === 'ego_welcart_tcd079') {
            include($plugins_url_path . '/ego_welcart_tcd079/cart/wc_amazon_quickpay_page.php');
        } elseif ($theme_template === 'iconic_tcd062') {
            include($plugins_url_path . '/iconic_tcd062/cart/wc_amazon_quickpay_page.php');
        } else {
            echo $this->getPageTemplate();
        }

        $this->afterTemplateInclude();
        exit;
    }